I was surprised when I search on the term 'marionette shop' on this forum nothing comes up. So now it will ! Here are a few i know of, lets make a list !

http://axamarionettes.com/  
http://www.marionettes-rici.com/  
http://www.marionety.com/  
http://www.loutky.cz/
http://www.puppetsinprague.eu/
http://puppet-house.net/ (better version: http://www.puppet-house.co.jp)
http://www.marionettesprague.com/
http://www.puppetsinprague.eu/
http://www.tonysinnett.co.uk/
http://www.figurama.de/
http://www.themarionettes.net/

There may be some links scattered around but your right this will get them all in the same place and hopefully will be what people use to search. You found some good ones there.

Stumbled on this one today:
http://www.john-marionetten.de/
he has some vids on youtube as well:

Wow! I love the look of his marionettes! I am also impressed with some of the movement in the video. Did you notice how when the puppet is on his knees the movement of bringing the one foot around to get up? And that tumble was pretty sweet. I don't think I have ever seen a regularly strung puppet do that. I keep watching it to try and see the exact combination of the movements he used for it. Seems pretty simple but I bet it took him some time to master it.   Also liked when the puppet was riding on the back of the kid. nice back leg action.

He has one more vid as well: , I guess its a great teaching vid if I could speak German. Maybe Rikka can fill us in.

Another one which i have no idea how I forgot to add is http://www.czechmarionettes.com/